conf: fix an memory leak in virSocketAddrIsNumericLocalhost()

Signed-off-by: NChen Fan <chen.fan.fnst@cn.fujitsu.com>

src/util/virsocketaddr.c

@@ -894,19 +894,24 @@ virSocketAddrIsNumericLocalhost(const char *addr)
     struct in_addr tmp = { .s_addr = htonl(INADDR_LOOPBACK) };
     struct sockaddr_in *inet4;
     struct sockaddr_in6 *inet6;
+    bool ret = false;
 
     if (virSocketAddrParseInternal(&res, addr, AF_UNSPEC, false) < 0)
-        return false;
+        return ret;
 
     switch (res->ai_addr->sa_family) {
     case AF_INET:
         inet4 = (struct sockaddr_in*) res->ai_addr;
-        return memcmp(&inet4->sin_addr.s_addr, &tmp.s_addr,
-                      sizeof(inet4->sin_addr.s_addr)) == 0;
+        ret = memcmp(&inet4->sin_addr.s_addr, &tmp.s_addr,
+                     sizeof(inet4->sin_addr.s_addr)) == 0;
+        break;
     case AF_INET6:
         inet6 = (struct sockaddr_in6*) res->ai_addr;
-        return IN6_IS_ADDR_LOOPBACK(&(inet6->sin6_addr));
+        ret = IN6_IS_ADDR_LOOPBACK(&(inet6->sin6_addr));
+        break;
     }
-    return false;
+
+    freeaddrinfo(res);
+    return ret;
 
 }